제출 #289412

#제출 시각아이디문제언어결과실행 시간메모리
289412NucleistRectangles (IOI19_rect)C++14
0 / 100
6 ms896 KiB
#include "rect.h" //Self-control leads to consistency. #include <bits/stdc++.h> using namespace std; #pragma GCC target ("avx2") #pragma GCC optimization ("O3") #pragma GCC optimization ("unroll-loops") #define flash ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0) #define debug(x) cerr << " - " << #x << ": " << x << endl; #define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl; #define all(x) (x).begin(),(x).end() #define sz(x) (ll)x.size() #define ll long long #define INF 1000000000 #define MOD 1000000007 #define pb push_back #define ve vector<ll> #define dos pair<ll,ll> #define vedos vector<dos> #define rand mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()) #define EPS 0.000001 struct greateri { template<class T> bool operator()(T const &a, T const &b) const { return a > b; } }; void setIO(string s) { ios_base::sync_with_stdio(0); cin.tie(0); freopen((s+".in").c_str(),"r",stdin); freopen((s+".out").c_str(),"w",stdout); } int n,m,l; int sparse[201][21],mx[201][21],lok[201]; int ans[201][201][201],ans1[201][201][201]; int bit[201],pi[11]; void up(ll index,ll val){ for (ll i = index; i <= max(m,n); i+=(i&(-i))) { bit[i]+=val; } } ll query(ll index){ ll res=0; for (ll i = index; i > 0; i-=(i&(-i))) { res+=bit[i]; } return res; } ll fol(ll l,ll r){ up(l,1); up(r+1,-1); } long long count_rectangles(std::vector<std::vector<int> > a) { flash; n=sz(a); m=sz(a[0]); l=log2(n)+1; lok[1]=0; for (ll i = 2; i < 201; ++i) { lok[i]=lok[i/2]+1; } pi[0]=1; for (int i = 1; i < 10; ++i) { pi[i]=pi[i-1]*2; } for (ll i = 1; i < n-1; ++i) { sparse[m-2][0]=m-2; mx[m-2][0]=a[i][m-2]; for (ll j = m-3; j >= 1; --j) { sparse[j][0]=j+1; mx[j][0]=a[i][j]; for (ll k = 1; k <= l; ++k) { mx[j][k]=0; sparse[j][k]=sparse[sparse[j][k-1]][k-1]; mx[j][k]=max(mx[j][k-1],mx[sparse[j][k-1]][k-1]); } } for (ll j = 1; j < m-1; ++j) { for (ll k = 1; k <= m; ++k) { ll y=j+k-1; if(y>m-2)break; ll f=lok[k]; ll z=pi[f]; ll mi=max(mx[j][f],mx[y-(z)+1][f]); if(mi<a[i][j-1] && mi<a[i][y+1]){ ans[i][j][k]=1; } ans[i][j][k]+=ans[i-1][j][k]; } } } for (ll j = 1; j < m-1; ++j) { sparse[n-2][0]=n-2; mx[n-2][0]=a[n-2][j]; for (ll i = n-3; i >= 1; --i) { sparse[i][0]=i+1; mx[i][0]=a[i][j]; for (ll k = 1; k <= l; ++k) { mx[i][k]=0; sparse[i][k]=sparse[sparse[i][k-1]][k-1]; mx[i][k]=max(mx[i][k-1],mx[sparse[i][k-1]][k-1]); } } for (ll i = 1; i < n-1; ++i) { for (ll k = 1; k <= n; ++k) { ll y=i+k-1; if(y>n-2)break; ll f=lok[k]; ll z=pi[lok[k]]; ll yo=max(y-z+1,(ll)(0)); ll mi=max(mx[i][f],mx[yo][f]); if(mi<a[i-1][j] && mi<a[y+1][j]){ ans1[i][j][k]=1; } ans1[i][j][k]+=ans1[i][j-1][k]; } } } ll sol=0; vedos yol; for (ll i = 1; i < sz(a)-1; ++i) { for (ll j = 1; j < sz(a[i])-1; ++j) { yol.clear(); bit[0]=0; for (ll k = 1; k <= n; ++k) { bit[k]=0; ll y=i+k-1; if(y>n-2)break; ll index=-1; ll l=1,r=m; while(l<=r){ ll med=(l+r)>>1; ll koz=j+med-1; if(koz>m-2){ r=med-1; } else{ ll zol=ans1[i][j+med-1][k]-ans1[i][j-1][k]; if(zol==med){ index=med; l=med+1; } else{ r=med-1; } } } if(index!=-1){ yol.pb({index,k}); } } sort(all(yol)); ll f=0; for (ll k = 1; k <= m; ++k) { ll y=j+k-1; if(y>m-2)break; ll index=-1; ll l=1,r=n; while(l<=r){ ll med=(l+r)>>1; ll koz=i+med-1; if(koz>n-2){ r=med-1; } else{ ll zol=ans[i+med-1][j][k]-ans[i-1][j][k]; if(zol==med){ index=med; l=med+1; } else{ r=med-1; } } } while(f<sz(yol) && yol[f].first<k){ sol+=query(yol[f].second); f++; } if(index!=-1) fol(1,index); } while(f<sz(yol)){ sol+=query(yol[f].second); f++; } } } return sol; }

컴파일 시 표준 에러 (stderr) 메시지

rect.cpp:6: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    6 | #pragma GCC optimization ("O3")
      | 
rect.cpp:7: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    7 | #pragma GCC optimization ("unroll-loops")
      | 
rect.cpp: In function 'long long int fol(long long int, long long int)':
rect.cpp:53:1: warning: no return statement in function returning non-void [-Wreturn-type]
   53 | }
      | ^
rect.cpp: In function 'void setIO(std::string)':
rect.cpp:29:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   29 |  freopen((s+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
rect.cpp:30:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   30 |  freopen((s+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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